YASKAWA A1000 Technical Manual page 258

5.7 H: Terminal Functions
• Gain H3-03 = 100%, bias H3-04 = -25%, terminal A1 as frequency reference input:
An input of 0 Vdc will be equivalent to a -25% frequency reference.
When parameter H3-01 = 0, the frequency reference is 0% between 0 and 2 Vdc input.
When parameter H3-01 = 1, the motor will rotate in reverse between -10 and 2 Vdc input.
Figure 5.82
Figure 5.82 Frequency Reference Setting by Analog Input with Negative Bias

H3-05: Terminal A3 Signal Level Selection
Selects the input signal level for analog input A3.
for a list of functions and descriptions.
No.
H3-05
Setting 0: 0 to 10 Vdc
The input level is 0 to 10 Vdc. See the explanation provided for H3-01.
Setting 1: -10 V to 10 Vdc
The input level is -10 to 10 Vdc. See the explanation provided for H3-01.

H3-06: Terminal A3 Function Selection
Determines the function assigned to analog input terminal A3.
on page 260 for a list of functions and descriptions.
When analog input A3 is used as PTC input set H3-06 = E and make sure switch S4 on the terminal board is set for PTC
input. Also refer to Terminal A3 Analog/PTC Input Selection on page
No.
H3-06

H3-07, H3-08: Terminal A3 Gain and Bias Setting
Parameter H3-07 sets the level of the selected input value that is equal to 10 Vdc input at terminal A3 (gain).
Parameter H3-08 sets the level of the selected input value that is equal to 0 V input at terminal A3 (bias).
No.
H3-07
H3-08

H3-09: Terminal A2 Signal Level Selection
Selects the input signal level for analog input A2. Be sure to also set DIP switch S1 on the terminal board accordingly for
a voltage input or current input.
No.
H3-09
Setting 0: 0 to 10 Vdc
The input level is 0 to 10 Vdc.
258
H3-01 = 0
100 %
Frequency
H3-01 = 0
reference
0
2.0 V
Analog Input
-25%
Voltage
H3-01 = 1
Refer to Multi-Function Analog Input Terminal Settings on page 260
Name
Terminal A3 Signal Level Selection
Name
Terminal A3 Function Selection
Name
Terminal A3 Gain Setting
Terminal A3 Bias Setting
Name
Terminal A2 Signal Level Selection
Refer to Setting 0: 0 to 10 Vdc on page 257
H3-01 = 1
100%
-10 V -6.0 V
10 V
Refer to Setting 0: 0 to 10 Vdc on page
Refer to Setting 1: -10 to 10 Vdc on page
Refer to Multi-Function Analog Input Terminal Settings
90.
YASKAWA ELECTRIC SIEP C710616 27G YASKAWA AC Drive A1000 Technical Manual
2.0 V 10 V
Analog Input
-25%
Voltage
-100%
E1-04
-150%
Setting Range
0, 1
Setting Range
0 to 32
Setting Range
-999.9 to 999.9%
-999.9 to 999.9%
Setting Range
0 to 3
Default
0
257.
257.
Default
2
Default
100.0%
0.0%
Default
2